FIELD: invention refers to field of pipeline accessories.
SUBSTANCE: it is assigned for overlapping flows of liquid and gaseous abrasive mediums in gas, oil, chemical, energy, coal, oil chemical and oil refining and metallurgical industries. Body of wearing-resistant shutter of turning type has packet out of three coaxial metallic discs with passing windows for working medium and wearing-resistant protective fittings. Shutter is provided with mechanism of tangential turning of central locking disc relatively to motionless edge discs. Wearing-resistant fittings have concentric rings. These rings are installed in pairs on adjoining end-butt surfaces of discs, peripherally from passing windows and are provided with surfaces of mutual contact.
EFFECT: increases reliability and longevity of turning shutter due to increasing its wearing-resistance.
2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROTARY GATE VALVE | 2004 |
|
RU2279006C2 |
| ROTARY WEAR-RESISTANT SHUTTER | 2001 |
|
RU2206006C2 |
| GATE VALVE WITH UNLOADING SHUT-OFF UNIT | 1997 |
|
RU2135867C1 |
| GATE WITH TURNING LOCKING UNIT | 2000 |
|
RU2189513C2 |
| GATE-VALVE CUT-OFF ASSEMBLY | 1999 |
|
RU2158387C1 |
| STRAIGHT-FLOW CONTROLLED MULTI-PASS THROTTLE | 2004 |
|
RU2280800C1 |
| MULTIPURPOSE VALVE | 2009 |
|
RU2382924C1 |
| STOP VALVE | 2002 |
|
RU2239113C2 |
| AXIAL MULTIPURPOSE DISK VALVE | 2008 |
|
RU2382922C1 |
| METHOD OF ASSEMBLY OF SHUT-OFF MEMBER OF GATE VALVE | 1997 |
|
RU2135866C1 |
